Home / 29,348.12-40,499.78-15,918.86

Finding the Fourth Proportional to 29,348.12, 40,499.78 and 15,918.86

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Solution

The fourth proportional to 29,348.12, 40,499.78 and 15,918.86 is: 21,967.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,348.12 : 40,499.78 = 15,918.86 : x
  2. Step 2: Convert to fraction form
    29,348.12/40,499.78 = 15,918.86/x
  3. Step 3: Cross multiply
    29,348.12x = 40,499.78 × 15,918.86
  4. Step 4: Simplify right side
    29,348.12x = 644,710,327.85
  5. Step 5: Solve for x
    x = 644,710,327.85/29,348.12
  6. Step 6: Final answer
    x = 21,967.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.